make search bar with php or javascript (jQuery)

Question

First thing that I want to ask is which one is better to make search bar with php or js?
Please refer me to useful and workable link for making search bar

Answer 1

A standard search bar has following features:
if any search term is entered there should be a dropdown list to display suggestion for that word (from your database tables).
Now if user click on a search term either you refresh the page and append search string in URL.
OR
Refresh the page using Ajax call
(personally I prefer first one but it also depends on your requirement).
you can visit any website for suggestion
i.e Amazon, Flipkart, etc.

NOTE: To achieve this functionality you need to integrate both client side(jquery) and server side(php).